ccpr: Remove canMakeClipProcessor

Now that conics are supported we can make a ccpr clip FP out of any
path. No need to ask. And the 'fDrawCachablePaths' check was redundant
since clip paths are always volatile anyway (for now).

Bug: skia:
Change-Id: I670474a3b91f1c252ed323eb627bbb109788e6b8
Reviewed-on: https://skia-review.googlesource.com/124362
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
5 files changed